Orbital elements of OPS 4311
| Launched | 13 October 1971 |
| Flight ended | – |
| Launch site | Air Force Western Test Range, California, USA |
| Owner | United States |
| NORAD ID | 5557 |
| Alternative names |
DMSP 5B F1 |
| Date fetched |
Epoch osculation |
Inc. [°] |
Ecc. | RA asc node [hr] |
Arg Peri. [°] |
Mean anom [°] |
Mean motion [rev/day] |
Abs. mag |
| Date fetched |
Epoch osculation |
Inc. [°] |
Ecc. | RA asc node [hr] |
Arg Peri. [°] |
Mean anom [°] |
Mean motion [rev/day] |
Abs. mag |
| 2026 Mar 31 17:57 | 2026 Mar 26 06:38:36 | 99.0136 | 0.00511 | 12.3293 | 148.1518 | 212.2769 | 14.28480 | 7.243 |
| 2026 Mar 30 17:58 | 2026 Mar 26 06:38:36 | 99.0136 | 0.00511 | 12.3293 | 148.1518 | 212.2769 | 14.28480 | 7.243 |
| 2026 Mar 29 17:57 | 2026 Mar 26 06:38:36 | 99.0136 | 0.00511 | 12.3293 | 148.1518 | 212.2769 | 14.28480 | 7.243 |
| 2026 Mar 28 18:57 | 2026 Mar 26 06:38:36 | 99.0136 | 0.00511 | 12.3293 | 148.1518 | 212.2769 | 14.28480 | 7.243 |
| 2026 Mar 27 18:57 | 2026 Mar 26 06:38:36 | 99.0136 | 0.00511 | 12.3293 | 148.1518 | 212.2769 | 14.28480 | 7.243 |
| 2026 Mar 26 18:57 | 2026 Mar 26 06:38:36 | 99.0136 | 0.00511 | 12.3293 | 148.1518 | 212.2769 | 14.28480 | 7.243 |
| 2026 Mar 25 18:56 | 2026 Mar 20 12:47:46 | 99.0135 | 0.00508 | 11.9338 | 164.5993 | 212.2769 | 14.28480 | 7.243 |
| 2026 Mar 24 18:56 | 2026 Mar 20 12:47:46 | 99.0135 | 0.00508 | 11.9338 | 164.5993 | 212.2769 | 14.28480 | 7.243 |
| 2026 Mar 23 18:56 | 2026 Mar 20 12:47:46 | 99.0135 | 0.00508 | 11.9338 | 164.5993 | 212.2769 | 14.28480 | 7.243 |
| 2026 Mar 22 18:56 | 2026 Mar 20 12:47:46 | 99.0135 | 0.00508 | 11.9338 | 164.5993 | 212.2769 | 14.28480 | 7.243 |
| 2026 Mar 21 19:05 | 2026 Mar 20 12:47:46 | 99.0135 | 0.00508 | 11.9338 | 164.5993 | 212.2769 | 14.28480 | 7.243 |
| 2026 Mar 20 18:57 | 2026 Mar 20 12:47:46 | 99.0135 | 0.00508 | 11.9338 | 164.5993 | 212.2769 | 14.28480 | 7.243 |
| 2026 Mar 19 18:56 | 2026 Mar 15 13:26:25 | 99.0136 | 0.00506 | 11.5915 | 178.9096 | 212.2769 | 14.28480 | 7.243 |
| 2026 Mar 18 18:56 | 2026 Mar 15 13:26:25 | 99.0136 | 0.00506 | 11.5915 | 178.9096 | 212.2769 | 14.28480 | 7.243 |
| 2026 Mar 17 18:56 | 2026 Mar 15 13:26:25 | 99.0136 | 0.00506 | 11.5915 | 178.9096 | 212.2769 | 14.28480 | 7.243 |
| 2026 Mar 16 18:57 | 2026 Mar 15 13:26:25 | 99.0136 | 0.00506 | 11.5915 | 178.9096 | 212.2769 | 14.28480 | 7.243 |
| 2026 Mar 15 18:56 | 2026 Mar 15 13:26:25 | 99.0136 | 0.00506 | 11.5915 | 178.9096 | 212.2769 | 14.28480 | 7.243 |
| 2026 Mar 14 18:56 | 2026 Mar 10 05:40:44 | 99.0136 | 0.00503 | 11.2249 | 194.4029 | 212.2769 | 14.28480 | 7.243 |
| 2026 Mar 13 18:57 | 2026 Mar 10 05:40:44 | 99.0136 | 0.00503 | 11.2249 | 194.4029 | 212.2769 | 14.28480 | 7.243 |
| 2026 Mar 12 18:57 | 2026 Mar 10 05:40:44 | 99.0136 | 0.00503 | 11.2249 | 194.4029 | 212.2769 | 14.28480 | 7.243 |
| 2026 Mar 11 18:56 | 2026 Mar 10 05:40:44 | 99.0136 | 0.00503 | 11.2249 | 194.4029 | 212.2769 | 14.28480 | 7.243 |
| 2026 Mar 10 18:56 | 2026 Mar 10 05:40:44 | 99.0136 | 0.00503 | 11.2249 | 194.4029 | 212.2769 | 14.28480 | 7.243 |
| 2026 Mar 09 18:56 | 2026 Mar 04 06:47:15 | 99.0140 | 0.00500 | 10.8150 | 211.6286 | 212.2769 | 14.28480 | 7.243 |
| 2026 Mar 08 18:57 | 2026 Mar 04 06:47:15 | 99.0140 | 0.00500 | 10.8150 | 211.6286 | 212.2769 | 14.28480 | 7.243 |
| 2026 Mar 07 18:57 | 2026 Mar 04 06:47:15 | 99.0140 | 0.00500 | 10.8150 | 211.6286 | 212.2769 | 14.28480 | 7.243 |
| 2026 Mar 06 18:56 | 2026 Mar 04 06:47:15 | 99.0140 | 0.00500 | 10.8150 | 211.6286 | 212.2769 | 14.28480 | 7.243 |
| 2026 Mar 05 18:56 | 2026 Mar 04 06:47:15 | 99.0140 | 0.00500 | 10.8150 | 211.6286 | 212.2769 | 14.28480 | 7.243 |
| 2026 Mar 04 18:57 | 2026 Mar 04 06:47:15 | 99.0140 | 0.00500 | 10.8150 | 211.6286 | 212.2769 | 14.28480 | 7.243 |